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Hello everyone, I am a new member and this is my first post... 3 weeks ago I have traded in my 2009 Jetta sedan TDI, MT with 2010 Jetta sedan MT. My previous car had 42,000 miles on it and I had not a single issue with it, anyway my new Jetta TDI disapprovingly does not drive as smooth as my 2009..First, there is this vibration transmitted from engine compartment between 1000- 1200 RPM and on acceleration,[up to 2000 rpm] it is high frequency subtle type of vibration. You can feel it on the armrest too. Also my car makes resonating noise at 65 mile, mostly noticeable at 2000-2200 RPM @5th gear. It's more noticeable in the back seat. Took it to the dealer, they first said it's normal [no surprise there] then they suggested it could be harmonic balancer issue. They suggested I drive the car for a while and if it does not go away, they will take a look at it when I bring it for courtesy check at 5,000 mile. So far I am on 1350 miles and the same vibration/resonating cabin noise persists. Anyone had similar issue and if so, what did you guys do to get rid of it?
Thanks in advance
 

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sorry for not clearly explaining... if you increase the engine speed from idle to 1000-1200 RPM while the vehicle in standstill, not in motion, you would feel the steering wheel vibration, my previous 2009 never had that issue. Also while you accelerate, you would notice the steering wheel vibrates,[it is high frequency vibration and not very obvious but enough to annoy you] and if you put the gear in neutral, while in motion at speed 60 mph and above and let the engine idle, the vibration goes away. So I think it has something to do with engine speed.?Dealer said it could be harmonic balancer causing this and the cabin noise that occurs at 65 miles would be the result of this vibration. I just hope they solve this problem becuase it's not really fun to experience this on a brand new car.
 

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If it were a high miles DSG car I'd say the flywheel was suspect. One person did have a defective flywheel on a new manual transmission Golf which caused shaking and was fixed under warranty. It's possible but less likely on a brand new car.
 

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Cabin vibration 2009 TDI 6 speed

I read the message from the previous posting on vibration coming from the steering wheel. I am also getting a vibration and thought it was from my rear tires out of alignment. I had the tires changed and it did not solve the issue. The other day I did narrow the problem down. I rolled down the back rear passenger side window and the vibration started and increase in noise and vibration as I rolled the window down further. My wife was a bit amazed at the level of vibration and noise level that was generated through the window being raised or lowered. Window up... no noise or vibration. Get the window about 1/4 - 1/3 of the way down and it starts to get stronger the further down you continue.

I will be contacting the dealer and keep everyone posted on the findings.
 

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I read the message from the previous posting on vibration coming from the steering wheel. I am also getting a vibration and thought it was from my rear tires out of alignment. I had the tires changed and it did not solve the issue. The other day I did narrow the problem down. I rolled down the back rear passenger side window and the vibration started and increase in noise and vibration as I rolled the window down further. My wife was a bit amazed at the level of vibration and noise level that was generated through the window being raised or lowered. Window up... no noise or vibration. Get the window about 1/4 - 1/3 of the way down and it starts to get stronger the further down you continue.

I will be contacting the dealer and keep everyone posted on the findings.
This happens on many cars and all the VW-Audi I've had. It's due to the aerodynamic body. Wind blows across the open window and flutters. The noise and vibration you feel is from the air rapidly pulsing in and out. It has quite an effect on your eardrums right? Blow across an open bottle neck and you get the same effect.

Turn on the cabin vent fan or crack open a front window to get some air movement through the cabin and you'll find the flutter stops. The alternative is to install those plastic window shades. The car is designed this way for less drag.
 

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the 2010+ 2.0 TDI engine (CJAA) has no balancing shaft, where the previous ones did ( A3s might still have them ).

http://www.myturbodiesel.com/forum/f9/list-differences-between-cjaa-cbea-engine-audi-a3-golf-jetta-tdi-2880/

I don't know if that's the cause, I test drove another brand new Golf TDi manual after suspecting there's something wrong with my clutch; it also had that vibration around 1000 to 1200, then 1800 to 2000 ish. For me, engaging the clutch is what bothers me. seems to amplify this vibration, engaging higher (1500rpm or so) creates a "fluttering" sensation.

High compression turbo diesel, with only 4 counter weight on the crank, and no balancing shaft.... not sure what VW was thinking.... I hope it's normal though... I"m still skeptical, the other golf had the same vibration but seemed to engage much smoother than my car, than again, could have been brand new clutch being slipperier, I don't recall the clutch being rough when I test drove it.
 
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